l...@gnu.org (Ludovic Courtès) writes:
> Maxim Cournoyer <maxim.courno...@gmail.com> skribis:
>
>>>> l...@gnu.org (Ludovic Courtès) writes:
>>
>>>Lesson learned: we should not rely at all on generated patches because
>>>they are bound to change frequently (version string at the end, length
>>>of commit hash prefixes, etc.) It’s probably worse than tarballs
>>>generated by Git hosting services.
>>>
>>>So we should probably work towards using local copies of patches,
>>>unless
>>>we find that the generated patches do not include any variable bits.
>>>
>>
>> Maybe we could pass the patches through some sanitizer to strip any
>> metadata? I guess the content itself shouldn't change?
>
> We can’t really do that, or the downloads would no longer be
> fixed-output derivations and thus we wouldn’t be solving the problem.
Can you elaborate on why it cannot be done? If I understand correctly,
our 'git-fetch' origin type deletes the .git subdirectory after fetching
it, and yet it still creates fixed-output derivations, no? I don't see
why stripping metadata from a patch is fundamentally any different.
Mark
